Including filter system and high-performance PFUnA filter.
PFUnA is one of the PFAS family members homeowners hear about when researching persistent, hard-to-remove contaminants in drinking water. It can enter water supplies through industrial uses or from the breakdown of related fluorinated chemicals, and it’s known to persist rather than break down quickly. Valdez residents often discover PFUnA after a utility notice, local reporting, or a private well test — and if you’re worried, concentrating on treatment methods proven for PFAS removal is a good next step.
Because PFUnA usually occurs at very low levels, you’re unlikely to detect it by sight, smell, or taste in Valdez tap water; that’s why testing matters. PFAS like PFUnA don’t behave like familiar issues such as chlorine, sediment, or hard water, so standard under-sink cartridges or pitcher filters may not be sufficient. For many homeowners in our humid subtropical area, a whole-house strategy makes sense to reduce exposure during cooking, drinking, bathing, and everyday use.
For whole-home reduction of PFUnA, the most effective single-filter residential option is a well-sized granular activated carbon (GAC) system. GAC media offers a very large surface area that adsorbs many organic contaminants, including several PFAS. Success with PFUnA depends on using the right carbon type, providing adequate contact time, and maintaining appropriate flow rates — which is why a properly sized carbon tank usually outperforms a small, fast-flow cartridge in a whole-house setup.
At Mr. Pure Water we typically install whole-house GAC systems at the main water entry so Valdez homes get treated water at every tap and appliance. We size systems to match household water use because short contact time can reduce PFAS removal, and like all adsorption media, carbon must be serviced and replaced on schedule as it becomes loaded. If you have a recent water test, we’ll review it and recommend the right GAC configuration — and remember to confirm hardness and iron/sulfur levels before finalizing treatment selection.